diff --git a/packages/backend/routes/video/label.ts b/packages/backend/routes/video/label.ts
index cf3f093..08f2c6f 100644
--- a/packages/backend/routes/video/label.ts
+++ b/packages/backend/routes/video/label.ts
@@ -21,7 +21,7 @@ const videoSchema = BiliVideoSchema.omit({ publishedAt: true })
 
 export const getUnlabelledVideos = new Elysia({ prefix: "/videos" }).use(requireAuth).get(
 	"/unlabelled",
-	async () => {
+	async ({ user }) => {
 		return db.execute<z.infer<typeof videoSchema>>(sql`
             SELECT bm.*, ls.views, bu.username, bu.uid
 			FROM (
@@ -44,7 +44,8 @@ export const getUnlabelledVideos = new Elysia({ prefix: "/videos" }).use(require
 					 SELECT aid
 					 FROM internal.video_type_label
 					 TABLESAMPLE SYSTEM (8)
-					 WHERE video_type_label."user" = 'bvZMWcgYL2dr6vsJ'
+					 WHERE video_type_label."user" != ${user!.unqId}
+					 AND video_type_label."user" = 'bvZMWcgYL2dr6vsJ' 
 					 ORDER BY RANDOM()
 					 LIMIT 19
 				 )
diff --git a/packages/temp_frontend/app/routes/labelling/ControlBar.tsx b/packages/temp_frontend/app/routes/labelling/ControlBar.tsx
index a94a496..99ebd27 100644
--- a/packages/temp_frontend/app/routes/labelling/ControlBar.tsx
+++ b/packages/temp_frontend/app/routes/labelling/ControlBar.tsx
@@ -4,13 +4,12 @@ import { Check, ChevronLeft, ChevronRight, X } from "lucide-react";
 interface ControlBarProps {
 	currentIndex: number;
 	videosLength: number;
-	hasMore: boolean;
 	onPrevious: () => void;
 	onNext: () => void;
 	onLabel: (label: boolean) => void;
 }
 
-export function ControlBar({ currentIndex, videosLength, hasMore, onPrevious, onNext, onLabel }: ControlBarProps) {
+export function ControlBar({ currentIndex, videosLength, onPrevious, onNext, onLabel }: ControlBarProps) {
 	return (
 		<div className="fixed bottom-0 left-0 right-0 bg-background border-t p-4 shadow-lg">
 			<div className="max-w-4xl mx-auto flex items-center justify-between gap-4">
@@ -40,7 +39,7 @@ export function ControlBar({ currentIndex, videosLength, hasMore, onPrevious, on
 				<Button
 					variant="outline"
 					onClick={onNext}
-					disabled={currentIndex === videosLength - 1 && !hasMore}
+					disabled={currentIndex === videosLength - 1}
 					className="flex items-center gap-2"
 				>
 					下一个
diff --git a/packages/temp_frontend/app/routes/labelling/VideoInfo.tsx b/packages/temp_frontend/app/routes/labelling/VideoInfo.tsx
index 5812318..d50a747 100644
--- a/packages/temp_frontend/app/routes/labelling/VideoInfo.tsx
+++ b/packages/temp_frontend/app/routes/labelling/VideoInfo.tsx
@@ -18,24 +18,8 @@ export function VideoInfo({ video }: VideoInfoProps) {
 	};
 
 	return (
-		<div className="mb-24">
+		<div className="mb-24 mt-2">
 			<div className="flex flex-col sm:flex-row sm:gap-4">
-				{video.cover_url && (
-					<a
-						href={`https://www.bilibili.com/video/${video.bvid}`}
-						target="_blank"
-						rel="noopener noreferrer"
-						className="min-w-full sm:min-w-60 md:min-w-80 max-w-full
-            sm:max-w-60 md:max-w-80 aspect-video"
-					>
-						<img
-							src={video.cover_url}
-							referrerPolicy="no-referrer"
-							className="w-full h-full object-cover rounded-lg"
-							alt="Video cover"
-						/>
-					</a>
-				)}
 				<div>
 					<div className="max-sm:mt-6 flex items-center gap-2">
 						<h1 className="text-2xl font-medium">
diff --git a/packages/temp_frontend/app/routes/labelling/index.tsx b/packages/temp_frontend/app/routes/labelling/index.tsx
index bf14142..b024923 100644
--- a/packages/temp_frontend/app/routes/labelling/index.tsx
+++ b/packages/temp_frontend/app/routes/labelling/index.tsx
@@ -24,10 +24,11 @@ export default function Home() {
 	const [currentIndex, setCurrentIndex] = useState(0);
 	const [loading, setLoading] = useState(true);
 	const [error, setError] = useState<any>(null);
-	const [hasMore, setHasMore] = useState(true);
 	const [instructionsOpen, setInstructionsOpen] = useState(false);
+	const [localLabel, setLocalLabel] = useState<(boolean|undefined)[]>([]);
 
 	const fetchVideos = useCallback(async () => {
+		if (videos.length >= 30) return;
 		try {
 			setLoading(true);
 			const { data, error } = await app.videos.unlabelled.get({
@@ -43,9 +44,6 @@ export default function Home() {
 
 			if (data && data.length > 0) {
 				setVideos((prev) => [...prev, ...data]);
-				setHasMore(data.length === 20);
-			} else {
-				setHasMore(false);
 			}
 		} catch (err) {
 			setError({ status: 500, value: { message: "网络错误" } });
@@ -55,12 +53,12 @@ export default function Home() {
 	}, []);
 
 	const loadMoreIfNeeded = useCallback(() => {
-		if (hasMore && videos.length - currentIndex <= 6) {
+		if (videos.length - currentIndex <= 6) {
 			fetchVideos();
 		}
-	}, [hasMore, videos.length, currentIndex, fetchVideos]);
+	}, [videos.length, currentIndex, fetchVideos]);
 
-	const labelVideo = async (videoId: string, label: boolean) => {
+	const labelVideo = async (currentIndex: number, videoId: string, label: boolean) => {
 		const maxRetries = 5;
 		let retries = 0;
 
@@ -95,14 +93,25 @@ export default function Home() {
 
 		if (!success) {
 			toast.error(`标记失败，请稍后重试`);
+			setLocalLabel((prev) => {
+				const newLabel = [...prev];
+				newLabel[currentIndex] = undefined;
+				return newLabel;
+			});
 		}
 	};
 
 	const handleLabel = async (label: boolean) => {
 		const currentVideo = videos[currentIndex];
 		if (!currentVideo) return;
+		setLocalLabel((prev) => {
+			const newLabel = [...prev];
+			newLabel[currentIndex] = label;
+			console.log(newLabel);
+			return newLabel;
+		});
 
-		labelVideo(currentVideo.bvid!, label);
+		labelVideo(currentIndex, currentVideo.bvid!, label);
 		if (currentIndex < videos.length - 1) {
 			setCurrentIndex((prev) => prev + 1);
 			loadMoreIfNeeded();
@@ -135,6 +144,12 @@ export default function Home() {
 				return;
 			}
 
+			const hasModifier = e.ctrlKey || e.altKey || e.shiftKey || e.metaKey;
+
+			if (hasModifier) {
+				return;
+			}
+
 			const key = e.key.toUpperCase();
 
 			if (leftKeys.includes(key)) {
@@ -173,6 +188,11 @@ export default function Home() {
 	}
 
 	const currentVideo = videos[currentIndex];
+	const currentLabel = (()=> {
+		const l = localLabel[currentIndex];
+		if (l === undefined) return "none";
+		return l ? "true" : "false";
+	})()
 
 	return (
 		<Layout>
@@ -181,11 +201,11 @@ export default function Home() {
 			{currentVideo ? (
 				<>
 					<LabelInstructions open={instructionsOpen} onOpenChange={setInstructionsOpen} />
+					<span className="font-mono">Buffer health: {currentIndex}/{videos.length}, currentLabel: {currentLabel}</span>
 					<VideoInfo video={currentVideo} />
 					<ControlBar
 						currentIndex={currentIndex}
 						videosLength={videos.length}
-						hasMore={hasMore}
 						onPrevious={() => navigateTo(currentIndex - 1)}
 						onNext={() => navigateTo(currentIndex + 1)}
 						onLabel={handleLabel}